ASTROSAT CZTI

Data Quality Report

Orbit 26386

Creation date: 2024-06-27T19:28:04.277078
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A09_088T01_9000003808_26386cztM0_level2.evt modeM0/AS1A09_088T01_9000003808_26386cztM0_level2_quad_clean.evt
Size (bytes)605,096,64096,704,640
Size577.1 MB 92.2 MB
Events in quadrant A3,338,949644,675
Events in quadrant B3,427,917658,730
Events in quadrant C5,061,535604,585
Events in quadrant D6,073,148583,396

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139740
B0142300
C0192730
D0224060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6260570.910543%
B6260751.198083%
C62605298.450479%
D626077012.300319%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7560 6261 0 0 0.00% 0.00%
B 7560 6261 7 7 0.09% 0.11%
C 7560 6261 187 187 2.47% 2.99%
D 7560 6261 556 556 7.35% 8.88%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 13 19045 108.13 860 848 168.3
A 13 254 10682 58.44 860 848 168.3
A 0 226 7573 39.96 860 848 168.3
B 0 245 32012 195.98 860 842 159.0
B 5 172 24179 146.73 860 842 159.0
B 0 230 19600 117.94 860 842 159.0
C 3 233 1768402 9692.58 798 806 182.4
C 14 238 132240 720.72 798 806 182.4
C 2 16 47768 257.52 798 806 182.4
D 7 80 1902055 10223.85 790 772 186.0
D 1 52 1153926 6200.9 790 772 186.0
D 2 234 25945 135.36 790 772 186.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter